AC-DC converter



FIG. 1 is a front, left side and top perspective view of an AC-DC converter showing our new design;

FIG. 2 is a front, left side and bottom perspective view thereof;

FIG. 3 is a front elevation view thereof, the rear elevation view being a mirror image;

FIG. 4 is a left side view thereof, the right side view being a mirror image;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof. 

The ornamental design for an AC-DC converter, as shown and described. 